| 1009371-57-6

• CAS: 1009371-57-6
• 化学式: C₁₆H₁₈Cl₂OTi
• 分子量: 345.104
• InChiKey: HEWLNGOJNCJEIW-UHFFFAOYSA-K

反应信息

• 作为产物：
  描述：

  2-tetra methylcyclopentadienyl-4-methyl phenol 、 四氯化钛 在 n-BuLi 作用下， 以 甲苯 为溶剂， 以26.3%的产率得到
  参考文献：
  名称：

  Constrained Geometry Tetramethylcyclopentadienyl-phenoxytitanium Dichlorides:  Template Synthesis, Structures, and Catalytic Properties for Ethylene Polymerization

  摘要：

  The synthesis of four new bidentate ligands, 2-(tetramethylcyclopentadienyl)-4,6-di-tert-butylphenol ((TCDBP)H-2, 5), 2-(tetramethylcyclopentadienyl)-6-tert-butylphenol ((TCBP)H2, 6), 2-(tetramethylcyclopentadienyl)-6-phenylphenol ((TCPP)H-2, 7), and 2-(tetramethylcyclopentadienyl)-6-methylphenol ((TCMP)H-2, 8), as well as their corresponding constrained geometry tetramethylcyclopentadienyl-phenoxytitanium dichlorides (TCDBP)TiCl2 (9), (TCBP)TiCl2 (10), (TCPP)TiCl2 (11), and (TCMP)TiCl2 (12) are described. A new method for the synthesis of complexes 9-12 was developed. Molecular structures of 9, 10, and 11 were determined by single-crystal X-ray diffraction. The Cp(cent)-Ti-O angles of 106.8degrees for 9, 107.1degrees for 10, and 107.3degrees for 11 reveal their sterically open features as catalyst precursors. When activated with (Bu3Al)-Bu-i and Ph3C+B(C6F5)(4)(-), complexes 9-12 exhibit reasonable catalytic activity for ethylene polymerization, producing polyethylenes with moderate molecular weights and melting points.

  DOI：

  10.1021/om0306022